Apparatus for winding and placing coils in the slots of a stator

ABSTRACT

Apparatus for winding and placing coils in the slots of a stator, comprising a rotary index table carrying two sets of placer fingers spaced at 180* intervals, each set being adapted to hold two pole windings for a stator, a rotary indexing winding head carrying two pairs of coil forms spaced at 180* intervals, and a flyer for winding a wire into two groups of coils constituting two pole windings on the pair of coil forms at a winding station. After winding of the two pole windings on the pair of coil forms at the winding station, the winding head is indexed to bring this pair to a transfer station, where the two pole windings are transferred to a set of fingers on the table at the transfer station. After the transfer, the table is indexed to bring this set of fingers carrying the two pole windings to a placing station, where the two pole windings are pushed into the slots of a stator applied to the fingers.

United States Patent 2,366,380 1/1945 Bigelow 143/49X 2,771,919 11/1956Cox 143/135 FOREIGN PATENTS 537,011 3/1959 Belgium 143/32(105 PrimaryExaminer- Donald R. Schran Attorney- Berman, Davidson and BermanABSTRACT: A wood pulp and chipping apparatus for cutting and chippinglogs into pulpwood comprising a frame with a forward conveyor means anda rear conveyor means disposed to receive logs from said forwardconveyor means, and said conveyor means being disposed at an inclinedangle with respect to a horizontal plane so as to feed logs carriedthereby to a chipping and pulping means comprising an endless chaindrive with cutter and chipping teeth thereon, which teeth are disposedin directions so as to cover the top of the endless chain and theopposite sides thereof, and with the chipping and cutting means disposedto receive the logs after they have been fed rearwardly by said rearconveyor means.

PATENIEU m1 1 1911 3573.033

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61mm, f t vw WOOD PULP AND CHIPPING CHAIN SAW APPARATUS The presentinvention relates to an apparatus for producing wood pulp from treelength logs which have been cut from a forest and the like.

It is an object of the present invention to provide a compact and sturdystructure for producing wood chips and wood pulp from full length logsthat have been disposed on the apparatus.

It is another object of the present invention to provide a rugged,endless chain device that is disposed at one end of the apparatus of thepresent invention so that a skipper can roll or place tree logs on theconveyor and will permit the logs to be easily fed into a cutter meansdisposed on the rear end of the apparatus.

Yet another object of the present invention is to provide a wood pulpdevice or apparatus comprising a lower forward endless chain conveyorand a rearward endless chain conveyor disposed adjacent the rear end ofsaid first conveyor so as to receive tree lengths or logs therefrom andwith a substantially vertically disposed endless cutter conveyorpositioned adjacent the rear end of said rearward conveyor to cut orchip the log fed to the cutter conveyor so as to produce wood pulptherefrom.

Yet another object of the present invention is to provide a novel andcompact wood pulp device for chipping a log into wood pulp which deviceis provided with cutter means on an endless conveyor means, whichconveyor means are disposed as to chip into or cut into the wood inthreedifferent directions disposed perpendicular to each other to produce anefficient chipping and cutting result.

Various other objects and advantages of the present invention will bereadily apparent from the following detailed description, whenconsidered in connection with the accompanying drawings forming a partthereof, and in which:

FIG. 1 is a top plan view of the wood pulp apparatus embodying thepresent invention;

FIG. 2 is a section taken along the lines 2-2 of FIG. 1, illustratingthe device in side elevation;

FIG. 3 is a section taken along the lines 3-3 of FIG. 2 illustrating afront view of the apparatus embodying the present invention;

FIG. 4 is an enlarged detailed view illustrating the cutting teethembodied in the cutting means of the present apparatus; and

FIG. 5 is a section taken along the lines 4-4 illustrating the positionsof the different cutting teeth on the cutting means of the presentinvention.

Referring to the drawings, the reference numeral generally designatesthechipping and wood pulping device or apparatus of the presentinvention, provided with a frame including a bottom 12, a forwardsloping rear wall 14, and opposite side walls 16.

Disposed within the frame and adjacent the rear wall 14 thereof is anendless cutter or chipper conveyor means 18. The cutter means isprovided with a plurality of laterally spaced, endless chains 20, whichchains are disposed on or carried by sprocket wheels 22 and 24. The FIG.2 shows that the sprocket wheel 22 is disposed above and forwardly ofthe lower sprocket wheel 24 so that the endless chain 20 extends in asubstantially vertical direction with its upper end disposed forwardlyof its rear end.

The lower sprocket wheels 24 are disposed on a shaft 26, which shaft isconnected to the coupling of an electric motor 28 for operation thereby.The shaft 26 is disposed in suitable well known bearings. The uppersprocket wheels 22 are secured to a shaft 30 also disposed inconventional bearings and driven through the chains 20 connected to thedrive sprocket wheels 24. The endless chains 20 are connected to themotor 28 so as to be driven in the direction indicated by the arrowshown in FIG. 2 withthe forward portion of. the endless chain 20 movingin a downward direction and the rear portion moving in an upwarddirection.

The apparatus is provided with a rearward log conveyor endless chainmeans generally designated 32 which is provided with three laterallyspaced endless chains 34 disposed between the cutter endless chains 20,as best seen in FIG. 1. The endless chains 34 are carried by a rearsprocket wheel 36, as best seen in FIG. 2, and a forward sprocket wheel38 with the rearward sprocket wheels 36 being disposed above the forwardsprocket wheels 38, and with the rearward sprocket wheels 36 beingdisposed between the endless chains 20. The sprocket wheels 36 aresecured to a shaft 40 whil e ftie'sproke't whee'isssareseeurea toastiaft tz. l

The frame is provided with a reduction gear train mechanism generallyindicated at 44 adjacent the wall 16 of the frame which is on theopposite side of the frame from the electric motor '28. The reductiongear train mechanism is of I conventional and well known constructionand provides .a drive from the drive shaft 26 to the upper shaft 40 ofthe rearward log conveyor endless chain means 32. The sprocket wheels 38disposed on shaft 42 are driven by carrying the endless chains 34thereon, which chains 34 are driven by the sprocket wheels 36. Thereduction train gear mechanism greatly reduces the speed of the chains34, with respect to the cutting chains 20, which travel much faster andthe chains 34 are driven in the direction indicated by the arrows in 34with the upper portion of the chain 34 moving toward the rear of theapparatus and the lower portion of the chains 34 moving toward the frontof the apparatus.

The chains 34 are provided with angle irons 46 secured thereto at spacedintervalsso as to push or move the log, indicated at 48, upwardly alongthe conveyor and into the cutter conveyor chains 20.

The apparatus is provided with a lower forward endless log conveyormeans 52 with a plurality of laterally spaced endless chains 54 havingtheir rearward ends disposed between the forward ends of the endlesschains 34 as best seen in FIG. 1. The endless chains 54 are providedwith a plurality of transversely extending angle irons 56 disposedthereon at spaced intervals similar to the angle irons 46, so as to pushor move the logs 48 toward the conveyor means 32.

The endless chains 54 are carried by identical sprocket wheelsdesignated 38', the same as sprocket wheels 38, secured to shaft 42between the sprocket wheels 38.0f the endless chains 34. The forwardends of the chains 54 are carried by sprocket wheels 58 of much smallerdiameter than the sprocket wheels 38, as best seen in FIG. 2. Thesprocket -wheels 58 are disposed on a shaft 60 and driven through theconnection of the rear end of the endless chains 54 to the sprocketwheels 38 on the shaft 42. The small sprocket wheels 58 are provided sothat the forward end of the endless conveyor chains 54 are disposed at alow enough level so that a skipper can easily roll or move the logs 48on the front end of the conveyor to pass it to the rear conveyor andfeed it into the cutter conveyor means. The forward shaft 60 issupported by a plurality of forwardly extending bracket'or structuralsupport members 62 and feet 64, as best seen in FIG. 2.

Refem'ng to the FIGS. 4 and 5, it is to be noted that the endless chains20 which comprise the chains forthe cutter conveyance means 18 areprovided with cutter teeth thereon. The cutter teeth are provided on theendless chain 20 with a first tooth 66 secured to one side of the chain20 and having an upwardly and horizontally extending cutter blade 68thereon, with a cutting edge 70 on the front thereof. The blade 68completely'extends across the width of the chain 20.

The chain is provided with another cutter tooth 72 thereon which issecured to the opposite side of the chain 20 from the tooth 66, and withan upwardly extending portion 74 and a horizontal cutting blade 76thereon with a forward cutting edge 78.

The next link of the chain 20 is provided with a tooth'80 thereon whichis secured to the same side of the chain 20 as the tooth 72. The cutterblade '82 and the cuttingedge 84 of the tooth are disposed on the sameside of the chain 20 as the tooth 66.

Disposed on the next link of the chain 20 is another cutter tooth 86secured to the same side of the chain as the tooth 66 and with ahorizontal extending portion88 and a downwardly extending portion ofcutter blade 90 with a cutting edge 92 thereon. The blade 92 is disposedon the side of the chain 20 opposite the side upon which the cuttingblade 82 of the tooth 80 is disposed on. This is sequential arrangementof the teeth on the cutter blade throughout the entire length of theendless chains 20. Thus. the cutting teeth on the chains 20 reach to thenext comer of the chain from its initial or original edge. These cuttingchains are designed to be turning at a very fast rate of speed and thefeed chain moves very slowly. The teeth completely encircle the chains20 with the exception of the rear of the chain 20 or the part that isdisposed adjacent the sprocket wheels. This arrangement of the teethwith two teeth on top and two teeth on the sides enables the chains 20with their teeth to cut through a log even in a pinching condition.

In operation, the log is disposed on the front end of the forward logconveying means 52 and the transversely extending angle irons 56 causethe log to move to the rear of the apparatus and onto the front end ofthe lower log conveyor means 52. The operation of the apparatus and thegear chain causes this forward conveyor to again move the logs 48 towardthe rear of the apparatus and into the cutting teeth 66, 72, 80 and 86,arranged in sequence throughout the periphery of the chains 20. Thesecutting teeth cause the logs to be chipped.

Additional changes can be made in the present invention without changingthe relative location or arrangement of the various parts of theinvention, therefore the present invention is shown through the appendedclaims:

I claim:

1. An apparatus for producing wood pulp from logs and the like,comprising a frame, a conveyor means carried by said frame, a cuttermeans disposed adjacent the rear of said conveyor means for receivingmaterial therefrom, cutting teeth on said cutter means for pulpingmaterial delivered thereto and means for driving said conveyor andcutter means. wherein said conveyor means comprises endless chains withtransverse pusher members disposed on sprocket wheels and with its rearend disposed above its forward end, and wherein said cutter mean is aplurality of laterally spaced endless cutter chains disposed between therear portions of said conveyor endless chains and having uppersupporting sprocket wheels spaced above the conveyor means and lowersupporting sprocket wheels spaced below said conveyor means, said cutterchains having a plurality of cutter teeth, wherein one type of cuttertooth on said cutter chains has a side vertical'ponion secured to oneside of said chains and a horizontal portion with a front cutter edgeextending across the associated chain and beyond its opposite side,wherein another type of cutter tooth on said cutter chains is identicalto said one type tooth and oppositely disposed thereon, and wherein athird type of tooth has a vertical side portion, a horizontal topportion and a second downwardly extending cutter portion disposed on theside of its associated chain opposite said vertical portion.

2. The apparatus of claim 1 wherein a fourth tooth is provided on saidchain identical to said third type tooth and oppositely disposed.

3. The apparatus of claim 2 wherein said one, said another, said thirdand said fourth type tooth are disposed in said sequence on said chain.

4. The apparatus of claim 1, and wherein the upper supporting sprocketwheels are spaced forwardly from the lower supporting sprocket wheels,whereby said laterally spaced cutter chains are inclined downwardly andrearwardly.

5. The apparatus of claim 4, and wherein said conveyor means comprisesfirst endless conveyor chain means dis posed on sprocket wheels carriedby the frame with its rear end disposed above its forward end, secondendless conveyor chain means disposed rearwardly of said first conveyorchain means to receive material therefrom, said second conveyor chainmeans comprising a plurality of laterally spaced endless chains withtransverse pusher members carried by rear sprocket wheels and forwardsprocket wheels disposed on the same shaft as the rear sprocket wheelscarrying the first conveyor means endless chains and with the rearsprocket wheels of the second endless chain means disposed at a highervertical level than the front sprocket wheels of said second conveyorchain means.

1. Apparatus for winding and placing coils in the slots of a statorcomprising an indexing conveyor, a plurality of placer heads carried bythe conveyor at spaced intervals thereon, each placer head being adaptedto hold coils for placement in the slots of a stator applied to thehead, means for winding coils and transferring them to a placer head,means for indexing the conveyor to bring a placer head carrying coils toa placing station, and means at the placing station for pushing thecoils from the placer head at the placing station into the slots of astator applied to that placer head.
 2. Apparatus as set forth in claim 1wherein said conveyor comprises a rotary index table, said placer headsextending upward from the table and being spaced at equal intervalsaround the table, said table being rotatable in steps corresponding tosaid intervals to index the placer heads from a transfer station, atwhich coils are transferred to a placer head, to the placing station,and to index the placer heads from the placing station back to thetransfer station.
 3. Apparatus as set forth in claim 2 wherein eachplacer head comprises a set of fingers arranged in a circle with spacesbetween the fingers for receiving side portions of the coils, and saidcoil-pushing means comprises a stripper axially slidable within the setof fingers and means for driving the stripper.
 4. Apparatus as set forthin claim 3 wherein each set of fingers has its own stripper axiallyslidable therein, and wherein there is a single stripper driving meansat the placing station for driving the stripper of the set of fingers atthe placing station.
 5. Apparatus as set forth in claim 4 wherein thestripper-driving means comprises a vertically reciprocable rod movableupward from a retracted position at the placing station below the tableupward into the set of fingers at the placing station for driving thestripper of that set upward from a lowered retracted position in saidset, and then movable downward, and means for connecting the rod to thestripper for pulling the stripper back downward to its retractedposition when the rod moves downward and disconnecting the rod from thestripper when the stripper reaches its retracted position for withdrawalof the rod to enable indexing of the table.
 6. Apparatus as set forth inclaim 3 wherein the winding means comprises at least one coil form and arotatable flyer for winding a wire into coils around said form. 7.Apparatus as set forth in claim 6 wherein the coil form embodies meansfor the winding thereon of coils of different sizes.
 8. Apparatus as setforth in claim 7 having means for traversing the flyer for level windingof the wire on the coil form.
 9. Apparatus as set forth in claim 8having means at the placing station for clamping a stator on the set offingers at the placing station.
 10. Apparatus as set forth in claim 9having means for pushing coils off the coil form on to the fingers ofthe set of fingers at the transfer station with side portions of thecoils received in said spaces.
 11. Apparatus for winding and placingcoils in the slots of a stator comprising a rotary index table, aplurality of placer heads carried by the table spaced at equal intervalstherearound and extending upward therefrom, each placer head beingadapted to hold coils for placement in the slots of a stator applied tothe placer head, means for indexing the table to index the placer headsfrom a transfer station to a placing station and to index the placerheads from the placing station back to the transfer station, a rotarywinding head extending over the table at the transfer station, aplurality of coil form means carried by the winding head spaced at equalintervals therearound and extending downward therefrom, means forindexing the winding head to index the coil form means from a windingstation to the transfer station and to index the coil form means fromthe transfer station back to the winding station, means at the windingstation for winding a wire into coils on the coil form means at thewinding station, means for transferring coils from the coil form meansat the transfer station downward to the placer head at the transferstation, and means at the placing station for pushing the coils from theplacer head at the placing station into the slots of a stator applied tothat placer head.
 12. Apparatus as set forth in claim 11 wherein eachcoil form means comprises a pair of coil forms located adjacent oneanother adapted for winding thereon of two sets of coils to constitutetwo pole windings for a stator, said winding head being adapted forindexing each pair of coil forms from the winding station to thetransfer station for transfer of the two pole windings thereon to theplacer head at the transfer station.
 13. Apparatus as set forth in claim12 wherein each coil form embodies means for the winding thereon ofcoils of different sizes.
 14. Apparatus as set forth in claim 12 whereineach coil form comprises a first set of pins for the winding thereon ofa coil of smallest size, and additional successive sets of pins forsuccessive winding of coils of successively larger sizes, and means forsuccessively moving each successive set of pins from a retractedposition to a winding position defining a winding configurationsurrounding the preceding set of pins.
 15. Apparatus as set forth inclaim 13 wherein said winding means comprises a rotatable flyer forwinding a wire into coils first around one of the coil forms and thenaround the other of the coil forms of the pair of coil forms at thewinding station.
 16. Apparatus as set forth in claim 15 wherein theflyer is shiftable between a first position for winding coils on saidone of the coil forms of the pair at the winding station and a secondposition for winding coils on the other of the coil forms of the pair atthe winding station.
 17. Apparatus as set forth in claim 16 having meansfor traversing the flyer for level winding of the wire on the coil formsat the winding station.
 18. Apparatus as set forth in claim 17 whereineach coil form is carried by the winding head for vertical movementrelative to the winding head between a raised retracted position and alowered winding position and having means for effecting raising andlowering of each coil form, whereby each one of the coil forms at thewinding station may be raised to its retracted position for winding ofcoils on the other coil form at the winding station with the latter coilform in its lowered winding position.
 19. Apparatus as set forth inclaim 18 wherein the pair of coil forms at the transfer station isadapted to be lowered by their respective raising and lowering meansinto engagement with the placer head at the transfer station fortransfer of coils and then raised to clear said placer head, and whereineach coil form includes a stripper for pushing the coils wound thereondown off the coil form onto said placer head.
 20. Apparatus as set forthin claim 19 wherein each coil form comprises a carriage and meansmounting the carriage for vertical movement relative to the winding headbetween a raised retracted position and a lower position, a first set ofpins extending down from the carriage for the winding thereon of a coilof the smallest size, additional successive sets of pins mounted on thecarriage for movement with the carriage and for movement relative to thecarriage for successive winding of coils of successively larger sizes,means for successively moving each successive set of pins from a raisedretracted position relative to the carriage to a lowered windingposition relative to the carriage defining a winding configurationsurrounding the preceding set of pins, and means for moving eachcarriage and the associated pins between its raised retracted positionand its lowered position for winding of coils thereon at the windingstation, and for transfer of coils therefrom to a placer head at theplacer station.
 21. Apparatus as set forth in claim 20 having meansmounting certain of the pins in each set of pins for movement withrespect to others of the pins in the set between an expanded windingposition and a contracted position, means for effecting said movement ofsaid certain pins, and a stripper for pushing coils off the pins whensaid certain pins are contracted.
 22. A coil winder comprising arotatable flyer, a first arbor around which a wire may be wound into acoil by the flyer, and at least one additional arbor of larger size thanthe first arbor movable in axial direction relative to the first arborbetween a retracted position clear of the first arbor and a windingposition defining a winding configuration surrounding the first arborfor winding of the wire by the flyer into a second coil around saidadditional arbor.
 23. A coil winder as set forth in claim 22 whereineach arbor comprises a set of pins, the set of pins constituting thefirst arbor defining a first winding configuration and the set of pinsconstituting said additional arbor defining a larger windingconfiguration.
 24. A coil winder as set forth in claim 23 having meansmounting certain of the pins of each set for movement with respect toothers of the pins in the set between an expanded winding position and acontracted position, means for effecting said movement of said certainpins, and a stripper for pushing coils off the pins when said certainpins are contracted.
 25. A coil winder comprising a rotatabletraversable flyer, a first set of pins around which a wire may be woundinto a coil by the flyer, means for traversing the flyer while it isrotating for level windiNg of a first coil on the first set of pins, asecond set of pins around which the wire may be wound into a second coilby the flyer after the winding of the first coil, said second set ofpins being mounted for movement in the direction of their lengthparallel to the pins of the first set between a retracted position outof surrounding relation in respect to the pins of the first setthroughout the length of the first coil for the winding of the firstcoil on the first set of pins and a winding position surrounding thepins of the first set for the winding of the wire into a second coil onthe second set by the flyer.